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AS LS1 Vocabulary

Astronomy Learning Set 1 Vocabulary

TermDefinition
Crater a rounded depression in the surface of a planet, moon, or solid body.
Impact crater a crater formed when an object strikes a planet, moon, or solid body.
Hypothesis a prediction of what will happen to a dependent variable when a change is made to the independent variable while other variables are held constant.
Meteoroid a small-solar system body that has the potential to become a meteor.
Meteor an object that enters Earth’s atmosphere with such speed that it glows.
Dwarf planet a rounded solar-system body that is smaller than a planet.
Asteroid belt a region of the solar system between Mars and Jupiter in which most asteroids are located.
Asteroid a rocky or metallic solar-system body that revolves around the Sun, between 10 m and around 500 km in diameter.
Comet a small, icy solar-system body that revolves around the Sun and forms a tail as it gets closer to the sun.
Coma the cloud of gas and dust that forms around a comet as parts of the comet vaporize.
Created by: Marquart
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